620922 has 16 divisors (see below), whose sum is σ = 1249920. Its totient is φ = 205632.

The previous prime is 620911. The next prime is 620929. The reversal of 620922 is 229026.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620922.

It is not an unprimeable number, because it can be changed into a prime (620929) by changing a digit.

620922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2⁶²⁰⁹²² is an apocalyptic number.

620922 is an abundant number, since it is smaller than the sum of its proper divisors (628998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620922 is a wasteful number, since it uses less digits than its factorization.

620922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 620922 is about 787.9860404855. The cubic root of 620922 is about 85.3124372391.

Adding to 620922 its reverse (229026), we get a palindrome (849948).

The spelling of 620922 in words is "six hundred twenty thousand, nine hundred twenty-two".